MME T3396 Timer Support in APN-Profile and Call …...MME T3396 Timer Support in APN-Profile and...
6
MME T3396 Timer Support in APN-Profile and Call-Control-Profile • Feature Summary and Revision History, page 1 • Feature Changes, page 2 • Command Changes, page 2 • Performance Indicator Changes, page 4 Feature Summary and Revision History Summary Data MME Applicable Product(s) or Functional Area ASR 5500 Applicable Platform(s) Disabled - Configuration Required Feature Default Not applicable Related Changes in This Release • Command Line Interface Reference • MME Administration Guide • Statistics and Counters Reference Related Documentation Release Change Reference, StarOS Release 21.3/Ultra Services Platform Release N5.5 1
Transcript of MME T3396 Timer Support in APN-Profile and Call …...MME T3396 Timer Support in APN-Profile and...
MME T3396 Timer Support in APN-Profile andCall-Control-Profile
• Feature Summary and Revision History, page 1
• Feature Changes, page 2
• Command Changes, page 2
• Performance Indicator Changes, page 4
Feature Summary and Revision HistorySummary Data
MMEApplicable Product(s) or FunctionalArea
ASR 5500Applicable Platform(s)
Disabled - Configuration RequiredFeature Default
Not applicableRelated Changes in This Release
• Command Line Interface Reference
• MME Administration Guide
• Statistics and Counters Reference
Related Documentation
Release Change Reference, StarOS Release 21.3/Ultra Services Platform Release N5.5 1
Revision History
Revision history details are not provided for features introduced before releases 21.2 and N5.5.Important
ReleaseRevision Details
21.3The ESM T3396 timer can be configured at APN Profile and Call Control Profileto control the UE behavior depending on the APN and subscriber type.
Pre 21.2First introduced.
Feature ChangesWith this release, the T3396 timer can be configured at APN Profile and Call Control Profile to control theUE behavior depending on the APN and subscriber type. The T3396 timeout is configurable only for twoESM cause values - 26 'insufficient resources' or 27 'missing or unknown APN'. In earlier releases, the T3396timeout could only be configured at the MME service level and the cause value could not be specified. Thisenhancement is compliant with 3GPP TS 24.301 (section 6.5.1.4).
The T3396 timeout configuration will be applied from APN Profile, Call Control Profile and MME servicein decreasing order of precedence. If the ESMmessage is rejected with either of the cause values, the networkwill include a value for T3396 timer in ESM reject message. UE will not retry the ESM request message untilthe T3396 timer expires.
The T3396 timeout feature is specifically intended for VoLTE signaling control for subscribers that have noIMS subscription. This enhancement can also limit the number of Attach attempts for such subscribers andreduce the signaling impact on EPC nodes.
Command Changes
esm t3396-timeout - APN Profile Configuration ModeA new CLI command esm t3396-timeout is added in the APN Profile configuration mode to configure theESM T3396 timer to be sent to UE in ESM reject messages.
The T3396 timer can be configured only for ESM reject cause 'insufficient resources' and 'missing or unknownapn', under the ESM configuration in APN profile. The T3396 timer configuration in APN-profile will haveprecedence over the T3396 timer configuration in Call Control Profile and MME-service.configure
apn-profile profile_nameesm t3396-timeout timeout_value cause cause_code_valueremove esm t3396-timeout cause cause_code_valueend
Notes:
Release Change Reference, StarOS Release 21.3/Ultra Services Platform Release N5.52
MME T3396 Timer Support in APN-Profile and Call-Control-ProfileFeature Changes
• t3396-timeout timeout_value: Configures the ESM back-off timer to be sent to UE for ESM reject cause'insufficient resources' and 'missing or unknown apn'. This value overrides the Call Control profile andMME-service level configuration. The timeout_value is an integer from 0 to 11160.
• cause cause_code_value: Configures the cause code value as an integer that is either 26 or 27. If theconfigured value is present in the ESM reject messages, the T3396 back-off timer will be included.
◦The following cause values are supported:
• 26 - Insufficient resources
• 27 - Missing or Unknown APN
◦Only one cause value can be configured with the cause keyword. Multiple cause values cannot beconfigured.
◦To configure the T3396 timeout for different cause codes, the configuration must be done inmultiple lines. For example:esm t3396-timeout 1100 cause 26esm t3396-timeout 1500 cause 27
◦The new configuration for T3396 timeout for a given cause code will override the previousconfiguration. For example:esm t3396-timeout 1500 cause 26esm t3396-timeout 1800 cause 26
The final T3396 timeout that will be applied for cause code 26 is 1800 seconds.
◦There is no specified default value for T3396 timeout for a given cause code.
• remove: Removes the T3396 timeout configuration for the specified cause code from APN profile. TheT3396 timeout will now be applied from Call Control profile if configured or from MME-service indecreasing order of precedence.
esm t3396-timeout - Call Control Profile Configuration ModeA newCLI command esm t3396-timeout is added in the Call Control Profile configurationmode to configurethe ESM T3396 timer to be sent to UE in ESM reject messages.
The T3396 timer can be configured only for ESM reject cause 'insufficient resources' and 'missing or unknownapn', under the ESM configuration in APN profile. The T3396 timer configuration in APN-profile will haveprecedence over the T3396 timer configuration in MME-service.configure
call-control-profile profile_nameesm t3396-timeout timeout_value cause cause_code_valueremove esm t3396-timeout cause cause_code_valueend
Notes:
• t3396-timeout timeout_value: Configures the value for ESM backoff timer (in seconds) to be sent toUE for ESM reject cause 'insufficient resources' and 'missing or unknown apn'. This value overrides theMME-service level configuration. The timeout_value is an integer from 0 to 11160.
Release Change Reference, StarOS Release 21.3/Ultra Services Platform Release N5.5 3
MME T3396 Timer Support in APN-Profile and Call-Control-Profileesm t3396-timeout - Call Control Profile Configuration Mode
• cause cause_code_value: Configures the cause code value as an integer that is either 26 or 27. If theconfigured value is present in the ESM reject messages, the T3396 back-off timer will be included.
◦The following cause values are supported:
• 26 - Insufficient resources
• 27 - Missing or Unknown APN
◦Only one cause value can be configured with the cause keyword. Multiple cause values cannot beconfigured.
◦To configure the T3396 timeout for different cause codes, the configuration must be done inmultiple lines. For example:esm t3396-timeout 1100 cause 26esm t3396-timeout 1500 cause 27
◦The new configuration for T3396 timeout for a given cause code will override the previousconfiguration. For example:esm t3396-timeout 1500 cause 26esm t3396-timeout 1800 cause 26
The final T3396 timeout that will be applied for cause code 26 is 1800 seconds.
◦There is no specified default value for T3396 timeout for a given cause code.
• remove: Removes the T3396 timeout configuration for the specified cause code from Call Controlprofile. The T3396 timeout will then be applied from the MME-service.
Performance Indicator Changes
show apn-profile full nameThe following new fields are added to the output of this command to display the ESM T3396 timerconfiguration.
If T3396 timeout is configured for a cause code:
• ESM-T3396 Timer:
• Value for Cause Code UNKNOWN OR MISSING APN(27) - This fields displays the configuredT3396 timeout value in seconds for cause code value 27.
• Value for Cause Code INSUFFICIENT RESOURCES(26) - This fields displays the configuredT3396 timeout value in seconds for cause code value 26.
If T3396 timeout is not configured for any cause code:
• ESM-T3396 Timer - This fields displays "Not Configured".
Release Change Reference, StarOS Release 21.3/Ultra Services Platform Release N5.54
MME T3396 Timer Support in APN-Profile and Call-Control-ProfilePerformance Indicator Changes
show call-control profile full nameThe following new fields are added to the output of this command to display the ESM T3396 timerconfiguration.
If T3396 timeout is configured for a cause code:
• ESM-T3396 Timer:
• Value for Cause Code UNKNOWN OR MISSING APN(27) - This fields displays the configuredtimeout value in seconds for cause code value 27.
• Value for Cause Code INSUFFICIENT RESOURCES(26) - This fields displays the configuredtimeout value in seconds for cause code value 26.
If T3396 timeout is not configured for any cause code:
• ESM-T3396 Timer - This fields displays "Not Configured".
Release Change Reference, StarOS Release 21.3/Ultra Services Platform Release N5.5 5
MME T3396 Timer Support in APN-Profile and Call-Control-Profileshow call-control profile full name
Release Change Reference, StarOS Release 21.3/Ultra Services Platform Release N5.56
MME T3396 Timer Support in APN-Profile and Call-Control-Profileshow call-control profile full name
